Better than DarkReader
Great for the eyes
It works well
Highly recommended. Finally I found an extension that does what it says.
很好的
好好好， 我喜欢这个
Free
About
This extension automatically applies a dark theme to any website for more comfortable browsing, especially at night. It's fast, lightweight, and prioritizes user privacy by storing settings locally.
✓Automatic dark theme for all websites
✓Reduces eye strain
✓One-tap toggle
✓System dark mode sync
✓Keyboard shortcut support
✓Local theme generation
Show original description
What's New in Ultra Dark Mode Extension
1.2.3
August 14, 2026
Fix a minor bug
User reviews
Developer apps
FAQ
Does Ultra Dark Mode Extension have ads?
No, Ultra Dark Mode Extension does not contain advertisements. It is a free utility extension.
How much does Ultra Dark Mode Extension cost?
Ultra Dark Mode Extension is available for free. There are no upfront costs or subscription fees to use its core features.
What devices does Ultra Dark Mode Extension support?
Ultra Dark Mode Extension is supported on Mac, iPhone, iPad, and iPod devices, making it accessible across Apple's ecosystem.
How often is Ultra Dark Mode Extension updated?
The latest version, 1.2.1, was released on August 12, 2026. Updates are provided by the developer to ensure functionality and improvements.
Is Ultra Dark Mode Extension safe to use?
Yes, Ultra Dark Mode Extension prioritizes privacy by storing all settings locally on your device and does not require an account or collect personal data.
Can Ultra Dark Mode Extension automatically switch themes?
Yes, Ultra Dark Mode Extension can be configured to automatically switch to dark mode when your macOS or iOS system is set to dark mode.
What is the user sentiment for Ultra Dark Mode Extension?
Based on the provided data, Ultra Dark Mode Extension has a rating of 4.0 stars from 4 ratings, indicating generally positive user feedback.
Does Ultra Dark Mode Extension work on all websites?
Ultra Dark Mode Extension analyzes each page and generates comfortable dark colors for almost any site, even those that do not natively offer a dark theme.